@font-face {
    font-family: "icons-turn-arrow";
    src: url("../src/fonts/icons/turn-arrow.eot") format("embedded-opentype"),
    url("../src/fonts/icons/turn-arrow.woff") format("woff"),
    url("../src/fonts/icons/turn-arrow.ttf") format("truetype"),
    url("../src/fonts/icons/turn-arrow.svg") format("svg");
}
.is-inverse {
    transform: translate(320px) rotateY(180deg);
}
.controller-nav {
    position: absolute;
    left: 0;
    bottom: 30px;
    z-index: 101;

    width: 100%;

    text-align: center;
}
.controller-unit {
    display: inline-block;
    margin: 0 5px;
    width: 30px;
    height: 30px;

    text-align: center;
    vertical-align: middle;

    cursor: pointer;
    background-color: #aaa;
    border-radius: 50%;

    transform: scale(.5);
    transition: transform .6s ease-in-out, background-color .3s;
}
.is-center {
    background-color: #888;

    transform: scale(1);
}
.controller-unit:after {
    color: #fff;
    font-family: "icons-turn-arrow";
    font-size: 80%;
    line-height: 30px;

    content: "\e600";

    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
.is-inverse1 {
    background-color: #555;

    transform: rotateY(180deg);
}